Search Results - "Darula, M"

Noise properties of HTS Josephson mixers at 345 GHz and operating temperatures at 20 K by Scherbel, J., Darula, M., Harnack, O., Siegel, M.

“…The authors report on the mixing properties of high-temperature superconductor bicrystal Josephson junctions at 345 GHz and high-operating temperatures. A…”
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Phase locking in a multijunction superconducting loop by Darula, M., Beuven, S., Siegel, M., Darulova, A., Seidel, P.

“…Mutual phase locking of Josephson junctions in a multijunction superconducting loop (MSL) was investigated both theoretically and experimentally. The…”
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Dynamics of order parameter and microwave emission for a YBa2Cu3O7−δ bicrystal junction by Andoh, H., Harnack, O., Darula, M., Kohlstedt, H.

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Far infrared response of intrinsic Josephson junctions by Rother, S., Kleiner, R., Müller, P., Darula, M., Kasai, Y., Nakajima, K.

“…We present experiments on far infrared response of intrinsic Josephson junctions in Bi 2Sr 2CaCu 2O 8+ x . The frequencies we used were between 584 GHz and 762…”
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FIR response of intrinsic Josephson junctions by Rother, S., Koval, Y., Muller, P., Kleiner, R., Kasai, Y., Nakajima, K., Darula, M.

“…We present experiments on the far infrared response of intrinsic Josephson junctions in Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+x/ (BSCCO). We detected first…”
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Ultrafast YBCO photodetector based on the kinetic-inductive process by Williams, C., Xu, Y., Adam, R., Darula, M., Harnack, O., Scherbel, J., Siegel, M., Hegmann, F.A., Sobolewski, R.

“…We make use of the nonequilibrium kinetic-inductive effect in epitaxial YBa/sub 2/Cu/sub 3/O/sub 7-x/ (YBCO) thin films to demonstrate an ultrafast,…”
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On-chip integration of HTS Josephson oscillator and mixer by Beuven, S., Darula, M., Harnack, O., Karlovsky, K., Kohlstedt, H.

“…We report on the experimental realization of a sub-mm wavelength oscillator based on HTS Josephson junctions integrated on-chip with detector Josephson…”
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Effect of noise and capacitance on the dynamical characteristics of high-Tc Josephson junctions by BUSSE, F, NEBEL, R, HERZOG, P, DARULA, M, SEIDEL, P

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A double junction ring oscillator based on shunted, stacked junctions by Lomatch, S., Ruck, B., Schmitz, R., Darula, M., Kohlstedt, H.

“…We present the design of a double junction ring oscillator, along with initial rf measurements. The ring oscillator design includes the usage of two shunted,…”
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HTS mixers based on the Josephson effect and on the hot-electron bolometric effect by Harnack, O., Beuven, S., Darula, M., Kohlstedt, H., Tarasov, M., Stephansov, E., Ivanov, Z.

“…We report on our experimental studies of high-T/sub c/ Josephson mixers and high-T/sub c/ hot-electron bolometric (HEB) effect mixers. Mixers based on…”
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The threshold of phase locking in the system of two multi-junction superconducting loops by GRIB, A. N, SEIDEL, P, DARULA, M

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Picosecond response of optically driven Y-Ba-Cu-O microbridge and Josephson-junction integrated structures by Adam, R., Currie, M., Sobolewski, R., Harnack, O., Darula, M.

“…We report our studies on single-picosecond electrical pulse excitation and detection in YBa/sub 2/Cu/sub 3/O/sub 7-x/ (YBCO) transmission lines containing…”
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Submillimeter-wave mixing and noise in HTS Josephson junctions by Tarasov, M., Stepantsov, E., Golubev, D., Ivanov, Z., Claeson, T., Harnack, O., Darula, M., Beuven, S., Kohlstedt, H.

“…A Josephson quasioptical detector comprising YBaCuO junction on bicrystal MgO substrate, integrated log-periodic Au antenna, MgO extended hyperhemisphere lens…”
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Submillimeter-wave Josephson spectroscopy by Tarasov, M., Shul’man, A., Polyanskii, O., Vystavkin, A., Kosarev, E., Golubev, D., Stepantsov, E., Darula, M., Harnack, O., Ivanov, Z.

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Phase locking of HTS Josephson junctions closed into a superconducting loop by Beuven, S., Darula, M., Schubert, J., Zander, W., Siegel, M., Seidel, P.

“…We investigated the mutual interaction of four high-T/sub c/ Josephson junctions which were closed into a superconducting loop. Phase locking of all four…”
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Theoretical and experimental investigation of phase coherence in shorted 2D arrays of high-T c Josephson junctions by Pivarč, J., Beuven, S., Seidel, P., Darula, M., Beňačka, S.

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Modification of YBa2Cu3O7−δ-Au point contact interface properties by applied electric voltage by Plecenik, A., Grajcar, M., Seidel, P., Nebel, R., Schmauder, T., Beňačka, Š., Darula, M.

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Dynamic reduction of the critical current in a Josephson junction by DARULA, M, KEDRO, M

“…We have investigated the switching behavior of a Josephson tunnel junction driven by a signal with speed comparable to its plasma period tau sub(p). The…”
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Transport and microwave properties of YBa2Cu3Ox thin films in low magnetic fields by MAHEL, M, BENACKA, S, ADAM, R, DARULA, M, CHROMIK, S

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Large Shapiro steps and wide junction behaviour in HTS Josephson junctions at nitrogen temperatures by Weber, C., Klushin, A.M., Darula, M., Semerad, R., Prusseit, W., Kohlstedt, H.

“…We have fabricated bicrystal high- T c superconductor (HTS) Josephson junctions which, under microwave radiation, exhibited first current steps (1. Shapiro…”
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